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Daily Archives: July 26, 2019

  • Microsoft posts, then yanks, then re-posts this month’s second cumulative update for Win10 1903, KB4505903

    Posted on July 26th, 2019 at 18:16 woody Comment on the AskWoody Lounge

    We have a blow-by-blow account from @EP.

    Microsoft released a (truly gigantic) second monthly cumulative update for Win10 version 1903 on Thursday afternoon, pulled it a few hours later, then re-posted it on Friday afternoon.

    No indication why it was pulled, but it’s there now.

    KB 4505903 goes on and on. It fixes the RASMAN bug, but the MIT Kerberos bug is still there.

  • The Win10 1903 upgrade is now blocked on machines using older Intel Rapid Storage Technology drivers

    Posted on July 26th, 2019 at 08:16 woody Comment on the AskWoody Lounge

    UPDATE: Comments and new material have been moved here.

    It’s official Win10 version 1903 doesn’t like Intel Rapid Storage Technology (RST) drivers numbered between and If your machine has an older “Optane” driver — Fred Langa has a warning and analysis — you need to make sure that it’s updated to the latest version before trying to move to Win10 version 1903.

    Of course you aren’t going to jump into 1903 just yet, right? But it’s good that Microsoft is winnowing out these persistent problems. Kind of like, you know, a beta test should.

    From KB 4514156:

    If you are trying to update to the Windows 10 May 2019 Feature Update (Windows 10, version 1903), you may encounter an update compatibility hold and receive the message, “Intel Rapid Storage Technology (Intel RST): The inbox storage driver iastora.sys doesn’t work on these systems and causes stability problems on Windows. Check with your software/driver provider for an updated version that runs on this version of Windows.”

    Intel and Microsoft have found incompatibility issues with certain versions of the Intel® Rapid Storage Technology (Intel® RST) drivers and the Windows 10 May 2019 Update.  If your device has an Intel® RST driver version between and installed, it cannot install the May 2019 Update.

    Versions or later are compatible, and a device that has these drivers installed can install the Windows 10 May 2019 Update. For affected devices, the recommended version is

    The latest version available on the Intel site is, which dropped on 7/10/2019 . As you can see from the version numbers, Intel seems to update this driver frequently. As a consumer, you don’t want to update the driver directly. Instead, go to your hardware manufacturer’s site and get the latest RST driver set that they offer.